/*
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.instrumentation;

import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

/**
 * <p>
 * ObjectCallAdapter class.
 * </p>
 *
 * @author Gordon Fraser
 */
public class ObjectCallAdapter extends MethodVisitor {

    /**
     * Constant <code>logger</code>
     */
    protected static final Logger logger = LoggerFactory.getLogger(ObjectCallAdapter.class);

    Map<String, String> descriptors = null;

    /**
     * <p>
     * Constructor for ObjectCallAdapter.
     * </p>
     *
     * @param mv          a {@link org.objectweb.asm.MethodVisitor} object.
     * @param descriptors a {@link java.util.Map} object.
     */
    public ObjectCallAdapter(MethodVisitor mv, Map<String, String> descriptors) {
        super(Opcodes.ASM9, mv);
        this.descriptors = descriptors;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
        if (descriptors.containsKey(name + desc)) {
            logger.info("Replacing call to " + name + desc + " with "
                    + descriptors.get(name + desc));
            super.visitMethodInsn(opcode, owner, name, descriptors.get(name + desc), itf);
        } else {
            super.visitMethodInsn(opcode, owner, name, desc, itf);
        }
    }

}
